Section 1: Introduction | Daniel 3818 LNG Liquid Ultrasonic Meter Installation Manual |
May 2012 | |
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Table
Frequency/Digital | The meter has | |
Output(s) | (FODO) (Also see Section 3.6.1) | |
| (3) Frequency/Digital Outputs | |
| • FODO1 (four possible output configurations) | |
| • FODO2(eight possible output configurations) | |
| • FODO3(eight possible output configurations) | |
| Frequency or Digital Output parameter pairs (see Section 3.6.1) | |
| Frequency or Digital Outputs (FODO 1) source selections: | |
| • (FO1A, DO1A, FO1B, DO1B) | |
| Frequency or Digital Outputs (FODO 2) source selections | |
| • (FO1A, DO1A, FO1B, DO1B, FO2A, DO2A, FO2B, DO2B) | |
| Frequency or Digital Outputs (FODO 3) source selections | |
| • (FO1A, DO1A, FO1B, DO1B, FO2A, DO2A, FO2B, DO2B) | |
| Mode options: | |
| • | Open Collector (requires external excitation supply voltage and |
| • TTL (internally powered by the meter | |
| Channel B Phase options: | |
| • Lag forward, Lead reverse (Phase B lags Phase A while reporting forward flow, leads Phase A | |
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| while reporting reverse flow) |
| • Lead forward, Lag reverse (Phase B leads Phase A while reporting forward flow, lags Phase A | |
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| while reporting reverse flow) |
| Phase A and Phase B output (based on flow direction) | |
| • Reverse flow - output only reports flow in the reverse direction. For frequency outputs, | |
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| Phase B of the output is 90 degrees out of phase with Phase A. |
| • Forward flow - output only reports flow in the forward direction. For frequency outputs, | |
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| Phase B of the output is 90 degrees out of phase with Phase A. |
| • Absolute - output reports flow in both directions. For frequency outputs, Phase B of the | |
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| output is 90 degrees out of phase with Phase A. |
| • Bidirectional - output reports flow on Phase A only in the forward direction and on Phase B | |
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| only in the reverse direction. |
| Maximum frequency for the frequency outputs | |
| • | 1000Hz |
| • | 5000Hz |
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Analog Output(s) | • | (2) |
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| The analog output zero scale offset error is within ±0.1% of full scale and gain error is within |
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| ±0.2% of full scale. The total output drift is within ±50 ppm of full scale per °C. |
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10 | Meter specifications |